List tasks scheduled for today or earlier that aren't completed.
AI agents call list_today to retrieve information from Things Cloud MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns task data without modifying, deleting, or executing any operations. It is a simple read operation that retrieves existing task information from Things 3. The low severity reflects minimal risk even if misused by an AI agent, as it only exposes task visibility without enabling destructive or consequential actions.
From the tool's definition Tool name 'list_today' and description 'List tasks scheduled for today or earlier that aren't completed' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
List tasks scheduled for today or earlier that aren't completed. It is categorised as a Read tool in the Things Cloud MCP MCP Server, which means it retrieves data without modifying state.
Register the Things Cloud MCP server in PolicyLayer and add a rule for list_today: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Things Cloud MCP. Nothing to install.
list_today is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_today rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for list_today. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
list_today is provided by the Things Cloud MCP server (nkootstra/things). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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